the road to cabb
DESCRIPTION
The Road to CABB. via POCS and MOPS. Overview. Early Systems Latest System Future Systems Bandwidth Growth Trend Reasons for this Trend. Xfilt (1994) 16MHz 8 Bit Data 2 Polarizations 1 ASIC + 2 FPGAs. DAS (1997) 64MHz 8 Bit Data 2 Polarizations 19 FPGAs + ASICs. Early Systems. - PowerPoint PPT PresentationTRANSCRIPT
The Road to CABB
via POCS and MOPS
Overview
• Early Systems
• Latest System
• Future Systems
• Bandwidth Growth Trend
• Reasons for this Trend
Early Systems
• Xfilt (1994)– 16MHz– 8 Bit Data– 2 Polarizations– 1 ASIC + 2
FPGAs
• DAS (1997)– 64MHz
– 8 Bit Data
– 2 Polarizations
– 19 FPGAs + ASICs
Early Systems
• Designed on a proprietary development board• Four major design revisions
Proof Of Concept Spectrometer (POCS)
Early Systems
• POCS64 (January 2004)– 64MHz, 128 Channels
– 8 Bit Data
– 1 Polarization
– 3 VirtexII FPGAs
– Not installed at Mopra
• POCS256 (April 2004)– 256MHz, 1024 Channels
– 8 Bit Data
– 2 Polarizations
– Installed
– 3 VirtexII FPGAs
Early Systems
• POCS256 (April 2004)– 256MHz, 1024 Channels
– 2 Bit Data
– 2 Polarizations
– 3 VirtexII FPGAs
– Installed
• POCS600 (August 2005)– 600MHz, 1024 Channels
– 2 Bit Data
– 2 Polarizations
– 5 VirtexII FPGAs
– Installed
Latest System
• MOPS Z2X(October 2005)
– 2200MHz, 2 Zoom Bands each of 137.5MHz and 4096 Channels
– 2 Bit Data– 2 Polarizations– 5 VirtexIIPro FPGAs– Installed
– 1 Terabit per second of data capable of being transferred between chips
– Over 300 Billion 18 bit multiplications possible per second
Latest System
User has the choice of two separations between the zoom modes
Latest SystemResults - Spectra
C34S
CS
Latest SystemResults – On The Fly Mapping
Future Systems
• MOPS (April 2006)– 8GHz Spectrometer– 4 MOPS Z2X Boards with all
zoom modes available
• CABB– 2GHz Correlator– 8 Bit Data– 32 revised MOPS boards
Bandwidth Growth Trend
Bandwith Growth Vs Time
00.5
11.5
22.5
33.5
44.5
Time
log
(Ba
nd
wid
th)
2 Bit Data8 Bit Data
Reasons for the Trend
• ASICs largely replaced by FPGAs• Major leap in technology
– FPGAs are around 4 orders of magnitude larger than they were a decade ago
– FPGAs have more dedicated resources
• Major improvement in design tools– Simulation throughout development cycle– New debug techniques
Reasons for TrendDevelopment Tools
The End of the Road